Originally Posted by Frostmind
The temperatures: Gpu 41C (105F), RAM 50C (122F)
Athlon C 1300
That's a Via motherboard if I'm not mistaken. I think it would be a good idea to upgrade to the latest VIA Hyperion/4-in-1 drivers and go to the latest Forceware version. There was a known issue with SiS chipsets with triangles appearing, but this was fixed waay back in Forceware 67.03.